Full Content is available to subscribers

Subscribe/Learn More  >

Nonlinear Open Loop Optimal Tracking Using Magnetostrictive Transducers

[+] Author Affiliations
William S. Oates, Ralph C. Smith

North Carolina State University

Paper No. IMECE2005-79898, pp. 17-24; 8 pages
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Dynamic Systems and Control, Parts A and B
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Dynamic Systems and Control Division
  • ISBN: 0-7918-4216-9 | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME


The design of high performance smart material devices requires control laws that can achieve stringent performance criteria required in many industrial, automotive, aerospace and biomedical applications. Moderate to high field inputs are often required which introduces nonlinear, hysteretic constitutive behavior. This often cannot be effectively compensated using linear control theory. In the present work, a nonlinear optimal control methodology is developed for tracking a reference trajectory when nonlinear, hysteretic constitutive behavior is significant. For brevity, we focus on open loop control for regimes when disturbances are minimal. The nonlinear control design is investigated on magnetostrictive rod-type actuators by implementing a homogenized energy model. Significant emphasis is place on material behavior at multiple length scales to produce an accurate and efficient model to compensate for nonlinear, hysteretic magnetostrictive constitutive behavior.

Copyright © 2005 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In